Enhancing soil health and fruit yield through Tephrosia biomass mulching in rainfed guava (Psidium guajava L.) orchards.

Autor: Ali A; ICAR-Indian Agricultural Research Institute, Barhi, Hazaribagh, Jharkhand, 825405, India.; The Graduate School, Indian Agricultural Research Institute, New Delhi, 110012, India., Das B; Farming System Research Centre for Hill and Plateau Region, ICAR Research Complex for Eastern Region, Plandu, Ranchi, Jharkhand, 834010, India. bikash41271@gmail.com.; ICAR-National Research Centre on Litchi, Muzaffarpur, Bihar, 842002, India. bikash41271@gmail.com., Dhakar MK; Farming System Research Centre for Hill and Plateau Region, ICAR Research Complex for Eastern Region, Plandu, Ranchi, Jharkhand, 834010, India. mahesh2iari@gmail.com., Naik SK; Farming System Research Centre for Hill and Plateau Region, ICAR Research Complex for Eastern Region, Plandu, Ranchi, Jharkhand, 834010, India., Patel VB; Horticultural Science Division, Krishi Anusandhan Bhawan - II, ICAR, New Delhi, 110012, India., Mishra GP; Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India., Sarkar PK; ICAR Research Complex for NEH Region, Tripura Centre, Lembucherra, West Tripura, 799210, India., Shinde R; Farming System Research Centre for Hill and Plateau Region, ICAR Research Complex for Eastern Region, Plandu, Ranchi, Jharkhand, 834010, India., Jha AK; Farming System Research Centre for Hill and Plateau Region, ICAR Research Complex for Eastern Region, Plandu, Ranchi, Jharkhand, 834010, India., Bhatt BP; Natural Resource Management Division, Krishi Anusandhan Bhawan - II, ICAR, New Delhi, 110012, India.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Jun 17; Vol. 14 (1), pp. 13913. Date of Electronic Publication: 2024 Jun 17.
DOI: 10.1038/s41598-024-64814-x
Abstrakt: Leguminous crop Tephrosia candida has high biomass production and contains a substantial quantity of nutrients within its biomass. Starting in 2019, a long-term study was done to find the best Tephrosia candida dose for mulching in guava orchards. The study had four treatments: T 1  = 3.0 kg dry biomass m -2 of the plant basin, T 2  = 2.0 kg, T 3  = 1.0 kg, and T 4  = control (no mulch). Every year, the treatments imposed in the month of August. The third year (2021-2022) results indicated that mulching with 3 kg of biomass m -2 increased trunk diameter, fruit yield, fruit weight, specific leaf area, total leaf chlorophyll, and leaf macro- and micro-nutrients. At 3.0 kg m -2 , mulching improved soil properties such as EC, available nitrogen, available phosphorus, exchangeable potassium, DTPA extractable micronutrients (Fe, Zn, Cu, and Mn), total organic carbon (C toc ), soil organic carbon (C soc ), organic carbon fractions, and microbial biomass carbon between 0-0.15 m and 0.15-0.30 m. There was an increasing trend in dehydrogenase activity (DHA) and fluorescein diacetate (FDA). The Tephrosia leaf litter exhibited decay constants of 1.27 year -1 , and the carbon content was 40.11%. Therefore, applying Tephrosia biomass mulching at a rate of 3.0 kg m -2 is a viable long-term solution for enhancing soil fertility and sequestering carbon.
(© 2024. The Author(s).)
Databáze: MEDLINE
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